1st app. Mutant Master
Ross Andru was an American comics artist and editor. He is best known for his work on The Amazing Spider-Man, Wonder Woman, The Flash, and The Metal Men, and for having co-created The Punisher. During Andru's long career he also worked on Sgt. Rock, the Suicide Squad features in the Brave and the Bold, Rip Hunter, Time Master and Sea Devils at DC. At Marvel Andru contributed to Marvel Feature (where he drew the 1st appearance of The Defenders) and Marvel Team-Up among others.
Don Heck was an American comics artist best known for co-creating the Marvel Comics characters Iron Man and the Wasp, and for his long run penciling The Avengers during the Silver Age
John Romita was one of the driving forces behind Marvel's Silver Age, he took up the reins on Spider-Man following the departure of Steve Ditko with issue #38. Romita's run on Spider-Man would be long and significant, introducing characters including Mary Jane Watson, the Kingpin and many others. He would be a major contributor to the entire Marvel line throughout the 1970s including designing the look of The Punisher.